Tilting head press



April 23, 1940. Q F BURROUGHS 2,197,849-

' TILTING HEAD PRESS Filed Dec. 3o, 1937 2 sheets-sheet 1 April 23, 1940. Q F BURROUGHS 2,197,849

TILTING HEAD PRESS 4 Filed Deo. 30, 1957 2 Sheets-Sheet 2 n 29? k 'rk INVENTQR CHmeuEe F Bueeousus Formed on the structures I'I and I8 are T-shaped guideways I9 and 2li extending rearwardly from the frame pedestals I and 2 as indicated at ZI, Fig. 4. 'I'hese overhanging portions of the'guideways are reinforced from beneath by suitable webs 22, Figs. 1 and 4, connected to the rear sides of the frames. The webs are in turn cross-connected by a rod 22a..

Slidably supported upon the guideways VI and 25 is a movable frame comprising va pair of heads 24 and 25 each having a C-shapedportion 23 'and' 21 slidablysupported onguideways I9 and 2li and also slidably engaging the lsides and undersurfaces thereof as shown in Fig. 3.

These heads 24 and 25 are substantially the' same length as the depth of frame pedestals I andr 2. Therefore as shown in Fig. 2, these heads can"y move an appreciable distance lover ythe `entire length of the guideways I9 while still maintaining full operative relation therewith. The upper ends of the heads 24 and 25 are rigidlycrossconnected together by a member29.Ik A tiltable head 35, which may be of any suitable confgf.

urationhaving a flat platen supportingsurface 3|, is supported by two trunnions 32 and 33 at opposite ends journalled inthe movable heads 24 and' 25. The tilting head 30 is of appreciable size tofadequately resist the press forces.

To control the angular position of the tuning.l

head, means are provided for rotating the ,same during rearwardand forward movement of the supporting frame 24, 25 and 29 on guideways I9 and Thisrotating means includes a pairl of arms 35 and ,56 connected to extensions of trunnions 32 and 33 and provided withA slots 31 and 38. The opposedsurfaces of these slots engage rollers 39 and 46 whichv arel` journaled about stationary axes upon suitable 'brackets 4I land42. Thesebrackets are secured Ato the side of frame pedestalsy I andv 2 and preferably but not `necessarily lie outside of arms 35 and 36. During a pressing operation the normal lposition of arms 35 and 36 with relation to rollers 35 and 40 is shown in Fig.A 4 in which position the tilting head 35 has its platen supporting surface 3| lying horizontally in the position shown in Fig. 1. Rearward movement of theA sliding heads 24 and to the dotted line position indicatedrat 45,"

Fig. 4,(causes arms and 36 and their cooperating rollers to rotate head 30 -to the dotted line position indidcated at 46, Fig. 4. Forward movement of the sliding frame from its rear position will again rotate tilting head-30 to its horizontal position shown in Fig. 1. I

To reciprocate the slidable framel :(I have provided extremely simple, compact and rugged op` erating lmeans comprising a pair of cylinders 4l' and 48associated respectively with the pedestal structures I'I and I8, specifically bybeing lformed integrally therewith and projecting rearwardly therefrom as shown in Fig. 2. 'I'he cylinders extend entirely through the upper ped-` estal structures I'I and I8 and are covered at their front ends by cylinder heads boltedA or other` wise suitably secured to the structures I'I and I8. The rear .endsof the cylinders are provided with combined packing and cylinder heads 5I through which plungers 52 and 53 extend. 'Ihe rear ends of these plungers are connected to the slidable heads 24 and 25 by crossheads 54 and side rods 55 extending-along each side of each cylinder.` Admission of fluid tothe front end of the cylinders willcause the plungers'to pull side rods55 and lsliding heads 24 and 25v rearwardly while uid pressure admitted to the other' end of the if desired. Suitable sheet metal 'covers'5'I and 58 are of substantiallytriangular shapein side ele-v yvation as shown in Figs. 1 and 4 and are of substantially channel shape asshc'wn' inlFigp 2, each one of these channel shaped triangular covers being secured tocrossheads 54 and to frame heads 24 and 25 so as` to ,cover the pistoni" rods 52 and 53 `and prevent foreign matter from `accumulating von .the piston rods and on the 4slideways I9 and 25.' These vcovers slide back and forth with the slidable frame.

eachprovided at their front ends by stops 6U and at their rear ends by stops 5I adapted to engage the front and rear'edges ofthe slidable frame heads 24 and 25 when movedy to their forward or rear extreme positions. f Itwill o f coursel be understood that when the tiltable head is in its forward horizontal position, Fig. 1, the main ram I can be moved upwardly to close` whatever `molds .may be supported on the platen 8 and tilting head surface 3|. The platen 8 is suitably guided by slideways generally indicated at 62 located at each of the inner corners A'of frame, .pedestals I and 2. The product, whether it be Thereupon, iiuid pressure is admitted'tothe forel ward ends of cylinders 41 and 48' to cause rfear-W` ward. movement Iof the slidabley frame 24, 25 and" 29A with consequent tilting of head 35 about ljthe axis of trunnions 32` and 33 through'. the co-f v To limit the'forwardvand rear movement ofthe slidablel frame, the guideways I9A and 20 are action of sidearms 35 and 346 with rollers 39 and i 45. The upper'and lower molds are then readily accessible for inspection, cleaning, removal or in-` sertion.

press in which the parts may be effectively mainz-'j erate'd in asimple and positive manner. The

'press structure isnotonly compactbut is relatively economical in manufacture main`l -tenance without in any Way restricting the necl tained inoperative alignment and/'may be op'` essary degree of flexibility .in the use or operation U of the press.v ,I f vIt will of course be understood thatvarious changes in details .of construction and arrangement of Vparts may be made by those skilled in of said platens and having guideways extending] in a direction transversely of the:A direction' in which the platens move relativelytoward leach I other,'a frame slidably supported on. saidguide'-v Ways solas to move in said transverse direction, f

the other lof said platensV comprisingatiltable head operatively connected-to said slidableV frame,

means formoving saidv slidable frame,` and means for tilting said .head'when said slidableframeis movedV iny said transverse l direction; along lsaid guideways.. f

f From the foregoing disclosure 1t 1s seen that Iv n a have provided an extremely rugged tilting head" tilting platen to move into avertical open position when the slidable frame is moved rearwardly on its guideways and to rotate the tiltable platen into parallelism with the lower platen when they slidable frame'is moved forwardly on' the guideways.

3. A tilting head press comprising, in combination, a stationary frame having horizontal.

guideways, a frame slidably supported on said guideways, a tiltable head operatively connected to said slidable frame, and means for tilting said head when said slidable Aframe is moved, said stationary frameincluding frame sides terminating at their upper ends in'y said guideways.

4. The' combination set forth in claim 1 further characterized in that said stationary frame includes frame sides terminating at their'upper' ends in said guideways, and said guideways and slidable frame have cooperating T-shaped and C-shaped members.

5. A tilting head press comprising, in combination, a stationary frame having horizontal guideways, airame slidably supported on said guideways, a tiltable head operatively connected to said slidable frame, and means for tilting said head when said slidable frame is moved, said stationary frame having side pedestals terminating at their upper .ends in said guideways, and piston and cylinder elements extending horizontally into said frame pedestals adjacent said guideways,

" and means connecting vone of said elements to said stationary frame and the other element to said slidable frame.

6. Atilting head press comprising, in combination, a stationary frame having horizontal guideways, a frame slidably supported on said guideways, via tiltable head operatively connectedto said slidableirame, and means for tilting said head when said slidable frame is moved, a crosshead support'edby the lower portion of said stationary frame, said crosshead having a cylinder, and a ram disposed in said cylinderformoving the lower 'platen upwardly in opposed relation to 4the tilting head. v

'7. A tilting head press comprising, in combination, a stationary frame having horizontal guidefways, a frame slidably supportedon said guide-4 ways, a tiltable head operatively connected to said slidable frame, and means for tilting said head when said slidable frame is moved, a crosshead supported by the lower portion of said stationary frame,-said crosshead having a cylinder,

a ram disposed in said cylinder for moving the lower platen upwardly in opposed relation to the tilting head, and push back piston and cylinder` elements one of which is supported by said stationary frame beneath the guideways thereon and the other of which is operatively connected to said platen and ram.

8. A' tilting headpress comprising, in combination', opposed platens relatively movable totransverse movement.

ward each other, a stationary frame carrying f one of saidplatens and having guideways extend- .ingin a direction transversely of the direction in vwhich the platens move relative towardeach other, a frame slidably supported on said guidevways-so as vto move in said transverse direction,

the other of said platens comprising a tiltable head operatively connected to said slidable frame, means for moving said slidable frame including operating piston and' cylinder elements one of which is secured vto said stationary frame and the other 'of which is connected to said slidable frame, and means for tilting said head when said head is moved in said transverse direction along said guideways.

9. A tilting head press comprising, in combination, opposed platens relatively movable toward eachother, a stationary frame carrying one of said platens and having guideways extending in a direction transversely of the 4direction in which frame slidably supported'on said guideways so as to move in said transverse direction, the other of said -platens comprising a tiltable head operatively connected to said slidable frame, means for moving said slidable frameincluding operating cylinder and piston elements one of which is secured to and projects directly rearwardly from said stationary frame and the other of rwhich is connected to said slidable frame, and means fory tilting said head when said slidable frame is moved-in said vtransverse direction along said guideways.

' l0. A tiltingfhead press comprising, in combination, exposed platens relatively movable toward each other, a stationary frame carrying one of said platens and having guideways extending in a direction transversely of the direction in which the platens move relative towardeach other, a

frame slidably supported on said guideways so as to move in said transverse direction, the other of said platens Comprising a tiltable head operatively Aconnected to saidl slidable frame, means for moving said slidable frame including piston and cylinder elements which extend horizontally intosaid stationary frame beneath said transversely extending guideways, means for connecting one of said elements to the stationary frame and the other element to the slidable frame, and means for tilting said head when said slidable head is moved in said transverse direction along f said guideways. f

11. A tilting head press comprising, in combination, opposedv platens `relatively movable toward each other, a stationary frame carrying one of said platens and having guideways extending in a direction transversely of the direction in which the platens move relatively towardA each other, a frame slidably supported on said guideways so as to `move in said transverse direction,

y the other of said platens comprising a tiltable head journalled in said slidable. frame, power means for moving said slidable,` frame, a slotted arm connected at one end to said tiltable head and the other end being free, a xed member secured to said stationaryframe and extending into said slot whereby transverse movement of said slidable frame causes the connected end of said arm to move transversely while the slotted free .end of said` arm is relatively held by said member thereby rotating said head l CHARLES F. BURROGHS.

during said 20 the platens move relative toward each other, av 

